@Kehaulani Indeed! I would be playing on that Christmas program next year. It is probably most well known for its choirs, but the orchestras and bands tour around the world as well and are amazing. I am quite excited to go there!
The full warm up includes several other exercises, edited from Clark and Schlossberg. I can post the complete pdf if you wish (or i can figure out how to post the pdf.)
Thanks so much, Jorge!